Developed by Qualcomm, Qualcomm 2.0 4 Port USB Wall Charge,the proprietary technology solution is built into devices powered by Qualcomm® SnapdragonTM processors, including the 200, 400, 600 and latest 800 series (including 810). With a compatible phone, laboratory tests show that Quick ChargeTM can charge a typical 3300mAh mobile battery from empty to 60%-75% in as little as 30 minutes.